Trochim, William M.K. Research Methods - 2nd ed. - New Delhi: Biztantra, 2009. - ix. 363p. 1. Foundation2.Sampling3. Measurement4. Research and Scaling5. Qualitative and Unobtrusive Measures6. Design ISBN: 9788177223729 Subjects--Topical Terms: Social Research Dewey Class. No.: 300.72 / TRO/R